Great idea for a quiz, but there are some errors. 631 is eastern Long Island in New York, not suburban Chicago. I can't find 516 anywhere, which is the area code for Nassau County, NY (also on Long Island). There are two different answers that include area code 718, but only one is the right set of area codes for that part of New York City. Don't know if there are other issues, because I quit the quiz when I found these three errors in the first two minutes. (Don't mean this to sound harsh - looks like a hard quiz to put together and a great idea, but needs some work.)
Also, not being able to zoom makes it almost impossible to see some of the smaller areas, like Manhattan.
Thanks a lot for the feedback. It seems that excel changed the values of the last digit for every multi-code answer by 1, which obviously caused many errors. This should be fixed now.
Also, not being able to zoom makes it almost impossible to see some of the smaller areas, like Manhattan.
The Oklahoma Panhandle area code is 580, but the answer for it is 214/469/945.
The area code for Central California is 925, but the answer is 929.
The area code for Western Maryland is 240/301, but is misspelled as 204/301.